This is beautiful plate of five Jimbacrinus bostocki crinoid fossils
from the Cundlego Formation of Western Australia. These crinoids are 3D and have a very alien appearance. The plate is 6.6 x 2.9" and has been nicely prepared. The largest crinoid on this plate measures 2.4" long.
These Jimbacrinus crinoids are hard to acquire due to Australia's strict fossil export laws. This specimen was exported legally during the 80's and was in a collection for years before being recently re-prepared. Comes with an acrylic display stand.
Crinoids, sometimes commonly referred to as sea lilies, are animals, not plants. They are echinoderms related to starfish, sea urchins, and brittle stars. Many crinoid traits are like other members of their phylum; such traits include tube feet, radial symmetry, a water vascular system, and appendages in multiples of five (pentameral). They first appeared in the Ordovician (488 million years ago) and some species are still alive today.